【作者】 苏致新；

【导师】 单文文；

【作者基本信息】 中国科学院研究生院（渗流流体力学研究所） ， 流体力学， 2010， 博士

【摘要】 本文以高台子油田扶杨油层为研究对象,室内物理模拟实验、渗流理论分析和现场实践相结合,深入研究了低渗透储层孔隙结构特征,并在此基础上对低渗透油藏渗流规律进行了系统研究,主要包括以下研究内容：(1)综合应用常规压汞、恒速压汞及核磁共振技术和非线性渗流实验对扶杨油层进行研究,对比分析了扶杨油层微观孔隙结构特征,实现了对扶杨油层微观孔隙结构的深入研究与认识。(2)利用核磁共振技术和低渗透物理模拟实验相结合,建立了测试特低渗透油藏可动油饱和度的方法,提出了扶杨油层可动油和残余油在地层孔喉中的分布规律。(3)提出了有效动用系数的概念,推导了特低渗透油藏下考虑非线性渗流段的不同井网单井产量公式和有效动用系数计算公式,并用于扶杨油层现场开发方案的井网优化及现有井网储层有效动用程度的评价。(4)编制了非线性渗流数值模拟软件和低渗透油藏井网快速评价软件,并用于高台子油田扶杨油层非线性渗流规律及有效驱动压力体系和井网部署,以指导油田的开发。更多还原

【Abstract】 In this dissertation, based on low permeability fluid mechanics, daqing Fuyang oil reservoir were studied.Combining with the physical simulation experiments, fluid mechanics of flow in porous medium, numerical analysis and field practical, and pore structure was researched. The main research results are as followed:(1)Based on the research of the experiments with conventional mercury penetration, nuclear magnetic resonance, constant rate mercury penetration and non-linear flow test, Fuyang oil reservoir was studied,with regard to microcosmic pore configuration, percentage of movable fluid, poroperm characteristics, pressure-sensitive effecct and so on, and lastly the reservoir physical characteristics of Fuyang oil reservoir are generalized.(2)Combining with nuclear magnetic resonance and low permeability physical simulation, a new method of testing movable oil saturation was established, and the distribution character of movable oil and irreducible oil was presented in low permeability reservoir.(3) The concept of the use coeffieient was presented and the use coeffieient of the reservoir can be quickly obtained.Based on the basie formula of non-linear flow model, the formulas of individual well Producing rate and the use coeffieients were deduced. The results can be used for low permeability reservoir well optimum pattern of site development programs and reservoir effective pressure evaluation.(4) Low permeability non-liear numerical simulation software and well pattern quick evaluation software were drawn up, and the softwares were applied to Fuyang oil reservoir on effective pressure and well pattern.更多还原